Objective: This study was designed to investigate the relationship between the expression of telomerase subunits and telomerase activity in lung cancer tissues. Method: In lung cancer tissues, benign phymatoid lesions, and adjacent non-cancer lung tissues, telomerase activity was determined by telomeric repeat amplification protocol (TRAP) assay, and the expression of human telomerase RNA component (hTR), human telomerase reverse transcriptase (hTERT), and human telomerase-associated protein(hTEP1 ) mRNA we...